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Technology update

May 19, 2008

'Polaritonics' forges ahead

Researchers in Greece have taken an important step towards the creation of practical optoelectronic devices that use "polaritons" — quasiparticles that are part matter and part light. The team has made a polariton light emitting diode (LED) that works at near room temperature, rather than at the extremely low operating temperatures of previous polariton devices. What's more, the LED was made using conventional semiconductor technology and runs on a simple battery rather than being powered by a laser like its predecessors.

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